SK40
Vishay Aztronic
High Current Toroidal Inductors,
EMI/RFI Noise Suppression, Switching Power Supplies
and Output Chokes
FEATURES
•
Copper winding on toroid construction
•
Available with a bare construction or in a case
•
Main uses are power supply, filtering or dc-to-dc
converters with frequencies up to 300 kHz
DIMENSIONS
in millimeters
SK40 N
40
2
20
15
1
42
4
3
43
25
4
42
3
1
SK40 H
40
SK40 V
25
2
28
40
25
45
3.5
20
Ød
0.7 x 0.7
0.7 x 0.7
3.5
ELECTRICAL SPECIFICATIONS
Tolerance
Max. Operating Frequency
Maximum Voltage
± 20 %
300 kHz
250 V
RMS
MECHANICAL SPECIFICATIONS
Magnetic Circuit
Terminals
toroid
wire N and E versions
pins: V version
PACKAGING
50 pieces in box
ENVIRONMENTAL SPECIFICATIONS
Operating Temperature Range
- 40 °C + 125 °C
MARKING (V VERSION)
Print marked:
manufacturer, model, style, inductance value, nominal
current
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37
For technical questions, contact: sfer@vishay.com
Document Number: 59023
Revision: 01-Oct-07
SK40
High Current Toroidal Inductors,
Vishay Aztronic
EMI/RFI Noise Suppression, Switching Power Supplies
and Output Chokes
ORDERING INFORMATION
SK
MODEL
40
STYLE
H
VERSION
47 µH
INDUCTANCE VALUE
NO LOAD
e2
LEAD FINISH
e2: SnCu
SAP PART NUMBERING GUIDELINES
S
K
4
0
H
VERSION
4
7
0
M
B
2
5
MODEL
STYLE
INDUCTANCE
VALUE
TOL.
PACKAGING
CODE
SPECIAL
(IF APPLICABLE)
See the end of this data book for conversion tables
INDUCTANCE VALUE VERSUS CURRENT
L
with
no load
L at
nominal
current
0
I nominal
I
MAX.
A
15
12
8
5.5
3.5
2.5
1.75
L
WITH
NO LOAD
µH
10
22
47
100
220
470
1000
L MIN.
AT NOMINAL
CURRENT
µH
7
15
33
70
154
330
700
DCR
MAX.
MΩ
7
12
25
55
104
241
681
Ø D MAX.
(WIRE DIAMETER)
N VERSION
mm
1.4
1.2
1.1
0.9
0.8
0.7
0.5
On request: other values or pin configuration.
Document Number: 59023
Revision: 01-Oct-07
For technical questions, contact: sfer@vishay.com
www.vishay.com
38
Legal Disclaimer Notice
Vishay
Disclaimer
All product specifications and data are subject to change without notice.
Vishay Intertechnology, Inc., its affiliates, agents, and employees, and all persons acting on its or their behalf
(collectively, “Vishay”), disclaim any and all liability for any errors, inaccuracies or incompleteness contained herein
or in any other disclosure relating to any product.
Vishay disclaims any and all liability arising out of the use or application of any product described herein or of any
information provided herein to the maximum extent permitted by law. The product specifications do not expand or
otherwise modify Vishay’s terms and conditions of purchase, including but not limited to the warranty expressed
therein, which apply to these products.
No license, express or implied, by estoppel or otherwise, to any intellectual property rights is granted by this
document or by any conduct of Vishay.
The products shown herein are not designed for use in medical, life-saving, or life-sustaining applications unless
otherwise expressly indicated. Customers using or selling Vishay products not expressly indicated for use in such
applications do so entirely at their own risk and agree to fully indemnify Vishay for any damages arising or resulting
from such use or sale. Please contact authorized Vishay personnel to obtain written terms and conditions regarding
products designed for such applications.
Product names and markings noted herein may be trademarks of their respective owners.
Document Number: 91000
Revision: 18-Jul-08
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